changed garbage collection of file handles a bit. although it was working, in hindsight i'm really not quite sure *how*, or rather: Lua seems to be smarter than I already gave it credit for. it apparently realized that a new reference to the object to be gc'ed was created in its finalizer, so it let it live. however, i'm not quite sure why that didn't lead to a pseudo-infinite loop. now we just keep the stream as an upvalue for the timer callback that actually closes the stream; also, removed the checks if event.timer exists. if people remove that it's really their own problem
1 file changed
